mtdscr 44 arch/powerpc/include/asm/emulated_ops.h struct ppc_emulated_entry mtdscr; mtdscr 1412 arch/powerpc/kernel/traps.c PPC_WARN_EMULATED(mtdscr, regs); mtdscr 2253 arch/powerpc/kernel/traps.c WARN_EMULATED_SETUP(mtdscr),